This study was conducted in accordance with the Child and Adolescent Welfare and Benefits Protection Act, which should be conducted every four years for understanding the physical and mental development, social participation, living and needs of children and adolescents in Taichung. In this study, children aged under 18 were divided into three age groups of 0-6, 6-12, and 12-18 years old. The stratified random sampling method was adopted in this study. The survey was conducted from July to October in 2016 and completed a total of 608 cases. Two focus groups were also held for the primary caregiver and the child's representative to discuss the findings in greater depth. The findings were then compared with those of the previous studies. Geographically speaking, the study finds that the welfare resources of mountainous area and sea line are comparatively insufficient. In terms of welfare grants, the Government should reduce application requirements for eligibility. Regarding the needs of children, the Government should set up more public kindergartens and child care centers, provide more multifunctional spaces for children. The related services should be in line with the parents' working hours to increase the usage. Regarding the needs of adolescents, the Government should provide safe employment opportunities, employment and academic counseling services, and provide additional leisure venues. Based on the findings, the study provide useful and practical suggestions for the Taichung City Government in planning future welfare resources and welfare policies for children and adolescents.